DDS FILES

[bigepilot]

Hey gents, I've recently posted about promotions and how to unlock higher ranks. I've manged to get that figured out (as well as promotions for myself). The big question I now have is the basics of a dds file, more importantly how the game actually calls for certain files.
The dds file that generates the crew management screen (sh4/data/menu/gui/layout/crewsystemsmanagement.dds) contains everything that can be displayed on that screen. How does the game actually come to display a certain set of pixels from that dds file for say a LT, both his picture in the compartment (seaman, PO, CPO, or officer) and the picture of his rank symbol next to his name? Are there commands or a controlling file somewhere else buried in the folders that tells the game the exact location of the desired art on the picture?
The crux of the issue is when I promote a LT his picture changes to that of a seaman, and the symbol of his rank is blank altogether. Anything over the rank of LT. produces the same result. Thanks in advance. I'll try to post a picture of the file converted to bitmap.

http://www.subsim.com/radioroom/showthread.php?t=155007 This thread shows the upper left of the image contained in th dds file.